#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>

#include <stdlib.h>
#include <time.h>

int main(int argc, char **argv){
    
    struct stat st;
    
    if(argc != 2){
        fprintf(stderr, "Usage: %s <file_pathname> \n", argv[0]);
        exit(EXIT_FAILURE);
    }
    
    if(stat(argv[1], &st) == -1){
        perror("stat");
        exit(EXIT_SUCCESS);
    }
    
    printf("File type:                ");
    switch(st.st_mode & S_IFMT){
        case S_IFBLK:  printf("block device\n");            break;
        case S_IFCHR:  printf("character device\n");        break;
        case S_IFDIR:  printf("directory\n");               break;
        case S_IFIFO:  printf("FIFO/pipe\n");               break;
        case S_IFLNK:  printf("symlink\n");                 break;
        case S_IFREG:  printf("regular file\n");            break;
        case S_IFSOCK: printf("socket\n");                  break;
        default:       printf("unknown?\n");                break;
    }
    
    printf("I-node number:            %ld\n", (long) st.st_ino);
    printf("Mode:                     %lo (octal)\n", (unsigned long) st.st_mode);
    printf("Link count:               %ld\n", (long) st.st_nlink);
    printf("Ownership:                UID=%ld   GID=%ld\n", (long) st.st_uid, (long) st.st_gid);
    printf("device containing file id:%ld \n", (long) st.st_dev);
    printf("device id:                %ld \n", (long) st.st_rdev);
    printf("File size:                %lld bytes\n", (long long) st.st_size);
    printf("Preferred I/O block size: %ld bytes\n", (long) st.st_blksize);
    printf("Blocks allocated:         %lld\n", (long long) st.st_blocks);
    printf("Last status change:       %s", ctime(&st.st_ctime));
    printf("Last file access:         %s", ctime(&st.st_atime));
    printf("Last file modification:   %s", ctime(&st.st_mtime));
    
    exit(EXIT_SUCCESS);
}
